CN88101078A

CN88101078A - The filling package method and apparatus

Info

Publication number: CN88101078A
Application number: CN88101078.2A
Authority: CN
Inventors: 洛利格·威利
Original assignee: Societe des Produits Nestle SA
Current assignee: Societe des Produits Nestle SA
Priority date: 1988-02-26
Filing date: 1988-02-26
Publication date: 1988-09-14
Also published as: CN1011873B

Abstract

The present invention is relevant with the method and apparatus of aseptically filling packing.Equipment has a filled head, be placed on the package post that fills subfacies, should fill head the liquid-filled valve of adjusting and valve actuation device were arranged, valve and valve actuating gear that a steam regulation admission velocity is arranged, two valves are in the common axle Above-the-line, and steam cock slides in the fluid injection control cock, a liquid-inlet and outlet are arranged, be arranged in the avris at the bottom of the filling head, the valve of a band evacuated tube is arranged, carry out washing and cleaning operation when filling finishing.

Description

The present invention and flexible package punch aseptically filling and clean and keep the method for its germ-free condition relevant filling head cavity, and packing is through sterilization and sealing, and liquid is injected through sterilization in the outside of packing that fills head cavity and be used to inject liquid in the packing.The present invention is also with to carry out this method and apparatus relevant.

Narrated a kind of method and apparatus of flexible package punch aseptically filling in No. the 72nd, 699, the European patent.

This equipment has shortcoming, because between filling for twice, fills the cleaning difficulty of head cavity, when changing to empty package, may make to fill head cavity and pollute, and destroys germ-free condition.In fact with this equipment the time, the method that unique cleaning fills head cavity is to use Mechanical Method, and validity and safety are all not enough, and the destruction of germ-free condition may cause bacterial growth, must be avoided.The present invention can utilize the import of steam or disinfecting air, overcomes above-mentioned shortcoming, both can do to fill the cleaning of head cavity, can keep germ-free condition again.

The relevant aseptically filling liquid packing of the present invention, with will fill the method that head cavity flushing keeps its germ-free condition, packing is through sterilization and sealing, the outside of packing that fills head cavity and be used to inject liquid is through sterilization, inject liquid in the packing, be characterised in that before package encapsulation or during sealing or afterwards, steam or disinfecting air depressed adding, with a filled concentric injection, with the residual liquid sidesway, when changing to empty package, keep the constant pressure of steam or disinfecting air, pollute in case fill head.

In background of the present invention, " packing " speech is interpreted as both comprising plastics and carded packaging, also comprises the packing of the other types in the food and medicine field." liquid " speech is understood to include the aqueous system and milk and fruit juice or than the article of viscous, and such as jam, tangerine sauce and so on wherein contains or do not contain the block of fruit.

In known filled head cavity method of cleaning, the raffinate of packing is got rid of with mechanical means or steam, and packs uncovered.In contrast, in the present invention, raffinate is got rid of with steam or disinfecting air, and therefore packaging closures can discharge raffinate.

Filling the preliminary sterilization of head cavity, is in 135 ℃ to 165 ℃ range of temperatures, with 2 to 6 atmospheric steam, carries out for 2 to 30 seconds.

After filling loop ends, washing and cleaning operation is in 120 ℃ to 150 ℃ range of temperaturess, and with 0.5 to 5 atmospheric steam, preferably 1 to 4 atmospheric steam carried out for 0.5 to 2 second.When using disinfecting air, air is introduced in ambient temperature and 0.5 to 3 barometric pressure, carries out for 0.5 to 2 second.At least when packing substitutes, should select the feed speed of steam or disinfecting air, form an air curtain, prevent any pollution of head cavity.If use steam, be preferably in 98 in the barometric pressure and to 110 ℃ temperature, work, as use disinfecting air, then under barometric pressure and ambient temperature, work.

Also used with the carrying out said method equipment of the present invention is relevant, comprise a filled head in the equipment, one is placed on the package post that fills under the head, and it is designed to fill the back sealed package that finishes, should fill head is a valve, regulate beam speed, and have device that valve is actuated, characteristics are to fill head also a valve in addition, the admission velocity of steam regulation or sterilization gas air, and having device to actuate this valve, the coaxial line that is designed in the fluid injection control cock of valve is placed, and inside slides.The import and the outlet of fluid are arranged, be placed on the avris that fills the head bottom, the valve of a band evacuated tube is arranged, behind filled the end, make washing and cleaning operation.

Package post is formed by cheek, the fixed packing of folder, and a sealing head is arranged.At least available two classes packing, for example a kind of is the packing of chewing of type shown in accompanying drawing and 72, No. 699 patents of EP-PS, and tearable adventitia and interior diaphragm seal are wherein arranged, another kind has the packing of chewing that tearable adventitia is arranged, and does not seal inner membrance.

Regulating the valve that injects liquid has the intake vent and the expandable membrane of steam or air.The valve of steam regulation or disinfecting air inlet air flow has a cutting edge and a center steam inlet passage in the bottom.This valve in also have a circular cone in the heart, wherein porose, when changing to empty package for steam or air admission.

Equipment of the present invention is described in detail with reference to accompanying drawing hereinafter, and accompanying drawing is as follows:

Fig. 1 equipment of the present invention analysing and observe when doing to fill the head cavity sterilization.

Fig. 2 is analysing and observe by Fig. 1 line II-II.

Equipment analysed and observe when Fig. 3 washed for filled head cavity is rinsed.

Equipment when Fig. 4 substitutes for packing is analysed and observe.

With the filled head that the number of marking on a map 1 is represented, a fluid inlet 2 and outlet 3 are arranged, they have valve 5 and exhaust tube 6 that cleans a filled usefulness that 26, one of seal joints are regulated 4, one steam regulation admission velocitys of valve of fluid injection speed.Packing 7 be placed on actual fluid injection injector head below, the packing chew 8, be with tearable film 9 and diaphragm seal 10.Packaging cheek 11 folder is fixed, and cheek is placed sealing head 12 down, fill the back that finishes with sealing head with package encapsulation.Valve 4 and 5 be designed to do concentric activity, can do moving of vertical direction by pneumatic or similar system (not shown).Feed liquor valve 4 has a joint 13, steam access passage 14 and expandable membrane 15.There are a cutting edge 16 and a center steam inlet passage 17 in the lower end of steam inlet valve 5, in the time of on the position that descends,

steam inlet passage

14 and 17 is closed.One porose 19 circular cone 18 is arranged therein in the heart, when changing to empty package, enter for steam.Do to fill that head cleans and the exhaust tube 6 of sterilization, a valve 20 is arranged, this exhaust tube or lead to catcher 21, or lead to evacuated tube 22, connect betwixt with a triple valve 23.

Accompanying drawing shows the variant step that packing fills.In Fig. 1, show that the present invention fills the sterilisation stage of head cavity and film 9.For sterilizing, feed liquor valve 4 cuts out, and the steam inlet valve is open.Steam under pressure is from A process passage 14 and 17.Effluent valve 20 is open, and steam enters catcher 21.Sealing head 12 does not heat yet, and against chewing 8.

Sterilization finishes back valve rod 5 and descends, and closed

walk

14 and 17, and cutting edge 16 is cut rupture of membranes 9, and valve 20 cuts out, and valve 4 raises, and fluid injection enter packing 7, and sealing head is in certainly on the position of reduction by import 2.This filled stage is not shown.

Fig. 3 shows that filling head cavity does the wash, and packs the equipment of the present invention when sealing.For this reason, feed liquor valve 4 cuts out again, and it is open that steam enters valve 5.Steam under pressure passes through from

passage

14 and 17, and raffinate is entered open pipes 6, enters evacuated tube 22, and at this moment sealing head 12 is on the position of rising.The carrying out of washing and cleaning operation with after finishing, with seal ring 24 heating, sealed package 7.Cheek 11 should be packed relieving then.

Fig. 4 shows that present device putting into before the empty package.Liquid-filling valve 4 is closed, and steam enters valve 5 on its extreme higher position, thereby circular cone 18 is against the seat 25 of valve 5.Through via hole 19, hole 19 will be confessed on a small quantity from the steam of

passage

14 and 17 from the steam at A place, form steam curtain, make when preventing to change to packing to fill head cavity and pollute.

So the present invention proposes a kind of high efficiency security system that has, at sterilisation stage with when changing to empty package to be filled, weight feed steam makes opportunities for contamination reach minimum.

Claims

1, a kind of to filling package liquid, and will fill the head cavity flushing, keep aseptic method, element disappears packing in method, and sealing, the outside process sterilization that fills head cavity and prepare to inject the packing of liquid, in packing, inject liquid, be characterised in that before and during sealing, and after the sealing, the steam or the plain air that disappears are depressed and filled a concentric injection adding package encapsulation, thereby the residual liquid side direction is arranged, and when changing to empty package, keep the constant pressure of steam or disinfecting air, pollute in case fill head.

2, as the method in the claim 1, be 135 ℃ to 165 ℃ and be characterized as with temperature, barometric pressure is 2 to 6 steam, will fill head cavity and sterilize for 2 to 30 seconds.

3, the method described in claim 1, and be characterized as fill loop ends after, be 120 to 150 ℃ with temperature, barometric pressure is 1 to 4 steam, or barometric pressure is 0.5 to 3 ambient temperature disinfecting air, sterilizes for 0.5 to 2 second to filled head cavity injection.

4, any equipment that method is used in carry out claim 1 to 3, comprising a filled head, one is placed on the package post that fills subfacies, it is designed to after filling end package encapsulation, the sealing head has a valve of regulating beam speed, and valve actuating gear, fill head a valve is arranged in addition and be characterized as, regulate the steam that enters or the speed of disinfecting air, the actuation gear of this valve is arranged, the design of this valve be with the valve of regulating fluid injection in coaxial Above-the-line, in the latter, slide, a feed tube and drain pipe are arranged, at the avris that fills the head bottom, be provided with the valve of evacuated tube, at the filled washing and cleaning operation that carries out when finishing.

5, as the equipment in the claim 4, there is one to chew and be characterized as packing, tearable adventitia and interior diaphragm seal are arranged.

6, as the equipment in the claim 4, and including one, feature chews, tearable adventitia is arranged and do not have interior diaphragm seal.

7,, and be characterized as intake vent that the valve of regulating fluid injection has steam or air and expandable membrane as the equipment in the claim 4.

8, as the equipment in the claim 4, and be characterized as the valve of steam regulation or disinfecting air admission velocity, there are a cutting edge and steam center inlet passage in its lower end.

9, as the equipment in the claim 4, and the circular cone that is characterized as steam or air admission valve has a hole, puts into steam or air when placing empty package.